tastypie filtering parameters on resources
fixing end bracket on build_list_operation
Merge pull request #8 from rmutter/filtering-params

Filtering params on Tastypie resources
Added support for ALL and ALL_WITH_RELATION filters
Added Model description and upgraded swagger js files
Added support for readonly field in writing operation, now the IN model displays only relevant fields
Added support for extra actions definition, very early implementation
Fix a bug with relationnal filters pointing to the orm field name instead of the tastypie resource name
Add support for non default detail_uri_name in resource (not using id / pk as default identifier)
Removed __exact filter as it is basically a duplicate of the filter name alone
Added ordering support, fixed some typos, added some todos for later features